Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans your middle and lower back and extends to the front of your humerus (upper arm bone). It plays a role in ...

Recently, though, I began a workout routine, but a friend warned me about the risk of injuries. Do you have any advice to ...

Injuring one or more of these muscles can cause pain in the upper back and shoulder. Such injuries can also cause difficulty moving the arm or shoulder. Symptoms of muscle strain include a feeling ...

Arm pain is a common experience with many possible causes. Acute injury, overuse (wear and tear), and underlying conditions affecting arm bones, muscles ... on an arm nerve. Symptoms include ...